Links:
AAAS - The World's Largest General Scientific Society
American Dietetic Association (ADA)
American Foundation for the Blind
American Lung Association of Nevada Asthma, Lung Disease, Tobacco Prevention
American Society for Cell Biology
American Society for Nutritional Sciences
Astronomical Society of the Pacific
atcc The Global Bioresource Center
Howard Hughes Medical Institute Biomedical Research & Science Education (HHMI)
International Commission on Stratigraphy
International Mineralogical Association (IMA)
Society for Amateur Scientists
Students for the Exploration and Development of Space (SEDS) Home
The American Institute of Physics -- Physics Publications and Resources
The Cornea Research Foundation
The Mount Wilson Observatory Association (MWOA)